In article , Leo
writes:

Agreed - but at a sweep of 1.2 seconds, the phosphor would need to
have a pretty long persistance to make a nice even display like the
one pictured.......bright, too!

Long exposure on the camera, that's all. I once did an 8 hour time exposure...

My Tek 465 can't do that - where can I buy one of those? :)

P7 in an old Dumont will do the job.

Of course it's probably just photoshopped. Like what they did to Google on
fark.com

73 de Jim, N2EY

In article , Mike Coslo writes:

Can a person even do 30 wpm with one of those?

Maybe. Can't use it in iambic mode, tho......

I didn't read the article yet, but that seems pretty fast.

30 isn't so fast....

73 de Jim, N2EY